US · USD · sales tax

United States tax & payroll calculator guide

Use the calculators for planning, then confirm current rates, allowances, contribution rules, and effective dates with the official authority. Calculum uses the numbers you enter; it does not reproduce United States tax law.

What materially changes

Rules to separate in a United States estimate

  • Federal income tax is only one layer. State and sometimes local income taxes can change take-home pay.
  • Payroll calculations can involve Social Security and Medicare deductions as well as employer-side costs.
  • Sales tax is mainly state and local, so the applicable rate can depend on the buyer, seller, item, and location.

Prices and purchases

United States: sales tax

Sales tax varies by state, locality, and item. Enter the actual combined rate for the purchase.

USAGov state and local tax guidance ↗